Boiler-flue tool



C. M, SPANGLER.

BOILER FLUE TOOL. APPLICATION FILED AUGJO, 1921.

Patented Dec. 13, 1921.

'INVENTOR.

A TTORNE Y.

rarest CHARLES IvI. SEANGLER, 0F 'EIVIPORI J'M,

EENNSYLVANIA.

BOILER-ELITE TOOL.

To all whom it may concern: I I

Be it known that I, CHARLES M. SPANGLER, a citizen of the United States, residing at Emporium, in the county of Cameron and State of Pennsylvania, have invented certain new and useful Improvements in Boiler- Flue Tools, of which the following is a speciiication. i

This invention relates to tools for crimping or bending the ends of boiler flues which are expanded or rolled in the flue sheets, so that the flue may be removed.

In my Patent No. 1,391,862, dated September 27, 1921, I have set forth and claimed a tool which is adapted for bending the ends of those fiues which are held by a flange or head flattened against the face of the flue sheet. Not all fines are thus se cured as many are expanded or rolled, without being provided with a flange, to hold them in the flue sheet.

My present invention is particularly designed for crimping the projecting end of a fine which is held in the flue sheet by being provided with an expanded end.

I have shown and described herein the same form of handle or lever, fulcrum jaw, and yoke disclosed in my Patent No. 1,391,862.

My present improvements relate to the improved nicking or crimping jaw, hereinafter described, and its combination with the lever or handle, fulcrum jaw, and yoke, whereby there is provided a tool particularly adapted for the use hereinbefore speci- I am aware that means other than those.

shown may be employed for securing the yoke to the handle and lever and the bending jaw to the yoke, and I do not, therefore, limit myself to the specific features of the invention shown in the drawing and hereinafter described, except where recited in the claims.

In the accompanying drawings:

Figure 1 is a side elevation of the complete tool, illustrating how it is used on a fiue which is expanded or rolled into the flue sheet;

Fig. 2 is an end elevation at the aw end of the tool;

Fig. 3 is a detail perspective of the nicking or crimping jaw;

Fig. 4 is a detail cross section through the fulcrum jaw;

Application filed August 10, 1521.

Specification of LettersPatent. patgntgd Deg 13 igzL Serial No. 491,224.

5 is a plan view of the handle or lever and'fulcrum aw; and

Fig. 6 is an end view showing how the expanded or rolled end of the flue appears after it has been nicked or crimped down.

its in my Patent No. 1,891,862, I employ a handle or lever 1 having a squared part 1 provided with jaw 2 rounded or notched at 3 and terminating in rounded fulcrum 4.

The nioking or crimping jaw 5 has a squared shank 5 of the same width as the squared part 1 and it rests against the latter, being held by a yoke 6 which embraces the squared parts 1 and 5 A'screw or fastening device 7 clamps the yoke 6 to the squared part 1; a screw or fastening device 8 carried by the yoke serves to clamp the squared part ,5 to the yoke. Consequently the yoke 6 and jaw 5 may be adjusted as a unit in relation to the handle 1, and, further, the jaw 5 may be adjusted within, or through the yoke 6.

The first adjustment described enables the yoke and jaw 5 to be set to the position generally required and then a finer adjustment of the jaw 5 is obtained by loosening the screw 8 and shifting the jaw 5 inside of the yoke 6 and then tightening screw 8,.

The jaw 5 has its nicking or crimping end sloped and offset from the jaw 2 as shown at 9 to provide sufficient clearance to enable proper operation to be had on the projecting end of the fine. The aw is provided with upwardly converging beveled parts 10 which meet in a sharp or chisel-like nicking or crimping ridge or edge 11 which is the effective part of the that engages he projecting end of the flue.

The end 12 ofthe jaw 5 is sloped backwardly so that it will not contact with the flue sheet during the application of the tool and to permit the sharp edge 11 to take a firm bite on the extended end of the flue.

The flue appears at 13 in Fig. 1 with a projecting end 14 which lies beyond the outer face of the flue sheet. The flue shown in Fig. 1 is of the expanded or rolled type wherein the projecting part 14; isnot beaded or flanged against the face of the sheet.

Fig. 6 illustrates the appearance of the projerting end 14 ofthe fine after it has been nicked and crimped by the tool.

The tool is operated as shown in Fig. 1, after suitable adjustment. The fulcrum 4 bears against the inside of the fine and the fresh bite on the niclring chisel-shaped edge 11 works against the outer face of the end 14 where it projects beyond the flue sheet.

The end 14: is crimped by operating the lever upwardly from the position shown in Fig. 1, then moving it to another position circumferentially of the end 14 to take a latter. Another nick or crimp is thus made. The work thus progresses until the end 14 has been completely crimped as shown in Fig. 6 whereupon the flue may be readily removed from the flue sheet.

My tool aflords an easily operated and convenient device for the purpose set forth ithout any danger of injuring the flue sheets.

I claim:

1. A boiler flue tool comprising a handle or lever having a rigid jaw provided with a fulcrum adapted to engage the inner surface oi the flue which is to be removed, and jaw adjustable lengthwise of the lever or handle for the purpose of setting it at the desired point, said jaw being provided with a chisel-like edge which extends length- 1 wise of said jaw and handle.

2. A boiler flue tool comprising a handle or lever having a notched jaw terminating in a fulcrum adapted to engage the inner surface of the flue which is to be removed, and a nicking or crimping jaw which is adjustable lengthwise of the lever or handle for the purpose of setting it at the point desired, said jaw being provided with a chisellike ridge adapted to be disposed opposite the notch in the first-named jaw, said ridge extending in the direction of the length of said jaws.

3. A boiler flue tool comprising a handle or lever having a rigid jaw provided with a fulcrum adapted to engage the inner surface of the flue which is to be removed, and

a nicking or crimping jaw which is adjustable lengthwise of the lever or handle, said nicking or crimping jaw having its sides beveled and converging upwardly and terminating in a chisel-like ridge extending lengthwise of the jaws and .is disposed in angular relation to the fulcrum jaw.

In testimony whereof I aflix my signa ture.

CHARLES M. SPANGLER. 

